Allelopathic Effect of Sargassum fusiforme on Growth of Karenia mikimotoi

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Allelopathic effect of Sargassum fusiforme on growth of Karenia mikimotoi was studied, the results showed that: fresh tissue and dry powder of S. fusiforme had a good inhibitory effect on the K. mikimotoi growth, and enhanced with the increase of mass concentration.The concentration dependence relationship was existed between S. fusiforme and K. mikimotoi. Aqueous extract of S. fusiforme had a promoting effect on K. mikimotoi at low concentration, and showed obvious inhibition at high concentration, in the 1.6 g/L of extract group, K. mikimotoi died on day 8. It illustrated that the inhibition of S. fusiforme on K. mikimotoi was implemented mainly by its soluble components.

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721-724

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February 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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